Sealing body for syringe

Abstract

MARKED-UP COPY Abstract In syringes pre-filled with hydrogen peroxide solution for a long period, a problem of undesirable matter generation has become apparent. The purpose of the invention is to provide a syringe sealing, including a surface portion in contact with a hydrogen peroxide solution to be filled in the syringe, in which the syringe sealing is for suppressing generation of undesirable matter caused by hydrogen peroxide, and material of the surface portion is selected from the group consisting of fluoro rubber, fluororesin, silicone rubber and elastomer. Abstract In syringes pre-filled with hydrogen peroxide solution for a long period, a problem of undesirable matter generation has become apparent. The purpose of the invention is to provide a syringe sealing, including a surface portion in contact with a hydrogen peroxide solution to be filled in the syringe, in which the syringe sealing is for suppressing generation of undesirable matter caused by hydrogen peroxide, and material of the surface portion is selected from the group consisting of fluoro rubber, fluororesin, silicone rubber and elastomer. 20 25 20 54 19 14 J ul 2 02 5 A b s t r a c t 2 0 2 5 2 0 5 4 1 9 1 4 J u l 2 0 2 5 I n s y r i n g e s p r e - f i l l e d w i t h h y d r o g e n p e r o x i d e s o l u t i o n f o r a l o n g p e r i o d , a p r o b l e m o f u n d e s i r a b l e m a t t e r g e n e r a t i o n h a s b e c o m e a p p a r e n t . T h e p u r p o s e o f t h e i n v e n t i o n i s t o p r o v i d e a s y r i n g e s e a l i n g , i n c l u d i n g a s u r f a c e p o r t i o n i n c o n t a c t w i t h a h y d r o g e n p e r o x i d e s o l u t i o n t o b e f i l l e d i n t h e s y r i n g e , i n w h i c h t h e s y r i n g e s e a l i n g i s f o r s u p p r e s s i n g g e n e r a t i o n o f u n d e s i r a b l e m a t t e r c a u s e d b y h y d r o g e n p e r o x i d e , a n d m a t e r i a l o f t h e s u r f a c e p o r t i o n i s s e l e c t e d f r o m t h e g r o u p c o n s i s t i n g o f f l u o r o r u b b e r , f l u o r o r e s i n , s i l i c o n e r u b b e r a n d e l a s t o m e r . A b s t r a c t 2 0 2 5 2 0 5 4 1 9 1 4 J u l 2 0 2 5

Claims

1. A syringe sealing, comprising a surface portion in contact with a hydrogenperoxide solution to be filled in the syringe,wherein the syringe sealing is for suppressing generation of undesirable matter caused by hydrogen peroxide, andmaterial of the surface portion is selected from the group consisting of fluoro rubber, fluororesin, silicone rubber and elastomer.

2. The syringe sealing according to claim 1, the syringe sealing comprises a gasketand a cap.

3. A syringe equipped with the syringe sealing according to claim 1 or 2, whereinthe syringe is for suppressing the generation of undesirable matter caused by the hydrogen peroxide.

4. The syringe according to claim 3, the syringe is pre-filled with hydrogenperoxide solution.

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